PIN system + player ranking fix + rebalanced equip EXP calculations

Added the PIN feature. Fixed ranking now calculating ranks now
world-based instead of overall. Rebalanced equip exp gain and made
cosmetic equipments no more leveling up (cosmetics leveling up are
useless).

feature_list.txt

@@ -0,0 +1,42 @@
+========== MapleSolaxiaV2 ==========
+Credits:
+Ronan - Freelance Developer
+Vcoc - Freelance Developer
+
+---------------------------
+Working features:
+---------------------------
+
+PQs/Quests:
+* HPQ/KPQ/LPQ/LMPQ/EllinPQ/PiratePQ 100%
+* BalrogPQ semi-functional
+* Brand-new PQ: Boss Rush PQ 100%
+* Doll house quest 100%
+* Loads of quests have been patched.
+
+Player Social Network:
+* Guild and Alliance system.
+* Lobby system - Limited multiple PQ instances on same channel.
+
+Cash:
+* EXP/DROP/Cosmetic Coupons 100%
+
+Server potentials:
+* Multi-worlds 100%
+* Adventurer Mount quests 100%
+* All Equipment levels up.
+* Player level rates.
+* Gain fame by quests.
+* Every monsterbook card is now droppable by overworld mobs.
+* Added Boss HP Bar for dozens of bosses (needs provided custom wz)
+* Custom jail system (needs provided custom wz)
+* Delete Character 100% (requires ENABLE_PIC activated)
+
+Admin/GM commands:
+* New commands
+* Zakum/Horntail/Pinkbean 100%
+
+Project:
+* Organized project code
+* Highly configurable server (see server flags at ServerConstants)
+---------------------------